The valve stem seals start to lose their sealing from 90,000 km, and oil gets into the combustion chamber along the valve stem. The burning oil lays soot on the piston rings, they start to stick, and from then on the consumption grows further; the lubrication also gets tighter and the exhaust smokes. The scale of the consumption on this engine is extraordinary. In the American class action the plaintiffs report around one litre every 1,200 km, and one of them one litre every 1,600 km. In 2013 the maker issued a new oil consumption standard for this engine in a bulletin, and took the position that this is not a defect: according to it every one of its engines may use that much. The lawsuit points out that with this standard the owner has to top up the oil twenty times before reaching the factory 15,000-mile oil change interval. The maker ran a separate programme for this engine, called the Customer Care Package, from December 2014. The franchised dealers had to check seven parts: the timing chain, the fuel injectors, the mass air flow sensor, the crankcase vent lines, the battery, the vacuum pump and the low pressure fuel sensor. These had to be replaced free of charge, even if the car had already fallen out of the four-year, 50,000-mile warranty. The same programme also shortened the oil change interval: 10,000 miles or one year instead of 15,000 miles or two years. Before buying it is therefore worth asking whether this programme was carried out on the car. The repair means opening the cylinder head, and because of the V layout of the engine on both sides.